Mud pump air case

Abstract

The invention discloses a mud pump air case which not only can adapt to the high elasticity requirement, but also can ensure that a capsule can maintain working balance in use. The mud pump air case comprises a capsule, wherein the capsule is made of a rubber material, and the inner bottom of the capsule is concaved internally; the inner part of the capsule is provided with a balance plate; and the balance plate is fixedly connected to the inner bottom surface of the capsule. According to the invention, the balance plate is additionally arranged in the capsule, when in work, the balance plateplays roles in balancing and working like a 'piston'; and when high-speed and high-frequency pressure fluctuation exists, because of the existence of the balance plate, two working chambers form in the capsule, the deformation speed rate of the air case can be stabilized without causing the bottom of the air case to bear a greater impact force, and the efficiency of work each time can be ensured,the balance plate plays a role in balancing. The mud pump air case provided by the invention has the advantages of good deformation sensitivity, rapid deformation and slow deformation speed; and the situation of 'collision out' of the bottom of the air case (capsule) is avoided, and the service life of the air case is prolonged greatly.

Description

technical field [0001] The present invention relates to the improvement of the mud pump air bag. Background technique [0002] In order to reduce the pressure and displacement fluctuations of the drilling mud pump, an air bag is usually installed on the discharge pipeline to make the mud pump achieve the best suction effect. It is widely used in high-pressure pipelines for petroleum and chemical transportation. It can balance the mud pump. The peak value of high-pressure fluid pressure stabilizes the pressure and reduces losses. [0003] In order to maintain the stability of the pressure and the displacement of the air bag during work, the lower part of the bag (body) will reciprocate to change the volume of the external cavity. During the movement, due to the large fluctuation of the mud pressure connected to the cavity, it often occurs that the lower capsule slaps the bottom of the cavity, and the state of rapid and high-frequency slapping often occurs. On the one hand, ...

AI Technical Summary

Problems solved by technology

On the one hand, this will lead to fatigue fracture in the middle of the capsule, and on the other hand, the bottom of the capsule will be damaged due to strength.

[0004] In order to pursue the service life of the air capsule, it is necessary to improve its material with high elasticity and high temperature adaptability, which will lead to a decrease in the overall strength of the capsule, and the capsule will deform under eccentric load during work

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